13245140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 28788480

約数和(自身を除く): 15543340

約数列:

[1, 2, 4, 5, 10, 20, 79, 83, 101, 158, 166, 202, 316, 332, 395, 404, 415, 505, 790, 830, 1010, 1580, 1660, 2020, 6557, 7979, 8383, 13114, 15958, 16766, 26228, 31916, 32785, 33532, 39895, 41915, 65570, 79790, 83830, 131140, 159580, 167660, 662257, 1324514, 2649028, 3311285, 6622570, 13245140]

約数ペア:

[(1, 13245140), (2, 6622570), (4, 3311285), (5, 2649028), (10, 1324514), (20, 662257), (79, 167660), (83, 159580), (101, 131140), (158, 83830), (166, 79790), (202, 65570), (316, 41915), (332, 39895), (395, 33532), (404, 32785), (415, 31916), (505, 26228), (790, 16766), (830, 15958), (1010, 13114), (1580, 8383), (1660, 7979), (2020, 6557)]